Adjustable support



y 1952 J-- E. PETRIE 2,598,596 7 ADJU$TABLE SUPPORT Filed May 27, 1950 Patented May 27, 1952 ADJUSTABLE SUB-BOB? s; E.- Behie. in is 1 assume or B tt e S ecial i s 00-! immno is, Mil 1 r oration; oi Minne 1 Application Mayer; 1950, sanctum ism-0e.-

1 Claim.

pof tinsle e fr whichisuefiaptedo e ei a ,ho kf n e per end of; mynovcl suppo in str ctu e At its ow-er nefmr novel str ctu s providedwith,

a -hookwl ich'fisiadapted to .receivea hanger or h liii e; T i e ansement mak s s b to xam u yanv or i n of h rtic t lo ns orthe like attheleye. level of the examiner. by mere dius mentei my n el por However, itissnecifically, understood that novel structure numerous other uses, such as,

e su pens on oi a i Q Td: 1l DR d electric ght ta s r n d tanee r rn he. ound:

The Primar obje t r m nven on s he res oa .Qf. e ice, which s li h in wei ht, nexpen ive o m nufac ure anddurahh n. se.

A.. t i ther obie t qfrmy invention s the prqvision Qt a, de ce. w i h s ex remelr e s to, pera e. and. wh ch as m nim m f rk nes parts-'4.

nti n Willec m ar t r m. t follow n et ilcl sresific io pp claim, n t qheeg r w ns Beisrriustethe aw s wherein ike haracters indicate like parts throughout the several ws;

Fig; 1 is a perspective view of my novel structure, illustrating one of its-many uses;

Fig. 2 is an enlarged view in side elevation,

some parts being. broken away; and 1 some parts shown in section;

Fi 3 is anien aresdavt ew ransv ct n taken nthe line 3-3 of Fig 1;

Fig. i is an enlarged perspective view showing ns ihe hu lements of myme device lock ring utilized therewith;

fig. 5 ,,is an enlarged perspective view of the locking member adapted to be received within the hub-forming portion of Fig. 4

Fig. 6 is an enlarged perspective view of another hub-forming portion of my novel structure; and t nr v msrts; n am one as 5 A e shown; the; p

.5 were Mine.-qqrriprinter H13 ormne mcmher lihis shown as in that" ela ion; i in o M5. ew

s enlate 3-. H b: .s: d portion 15, "wh ch! ueaeem u o lazancizz 03130 pr crvidecan ontwa1'dly-sopening..sponl 22; and an-.,a nnula1'-, compartment 2-3; radially inwalidly-iofctlie. abutments-.'.2;l; A torsion sprin 24; within, the annular compartment 231 hast-its" tightlyewonndsinner lend 25 snuglyreceived withinaperipherallyeslotted openings 26 -and 2-1- 111 thehubl-formingmembers I (hand :i l: respectively, and its tightly-wound outer end 28 received in a transversely-extended opening 29. A flexible rope or cord 30 is wound about the spool 22, the inner end thereof projecting through an opening 3| in the abutments 2| and held securely under a lip 32 while the outer end projects outwardly through the grommet opening I, and is preferably provided with a hook or the like 33. Spring 24 thus biases the cord to in a wound position on the spool 22 with the hook member 33 held tightly against the opening I.

For the purpose of releasably looking the spool 22 against rotation within the casing I, I provide a pin 34 received within an axially-extending opening 35 in the reduced end portion I5. As shown, the outer end of the pin 34 projects outwardly of the reduced end I and is provided with a head 36. At its inner end, pin 34 is likewise provided with an enlarged head 31 rotatably received within the cylindrical recess ll. Head 31 is provided with a segmental slot 38, which is alignable with the slotted openings 23 and 21, whereby to permit passage therethrough of the inner end 25 of the torsion spring 24 (see Fig. 5). Head 31 is also provided with radially outwardly-projecting circumferentially-spaced detents or fingers 39 adapted to be received within circumferentially-spaced' alignable openings 40 and 4| in the hub-forming portion l6 and in the flange 20 respectively when said openings are in alignment. A coil compression spring 42, received within the axially-extended well 43 in the hub-forming'portion l2, biases the head 31 and pin 34 axially outwardly, whereby to cause detents 39 to be received within the openings 4|] and 4| when the same are aligned upon relative rotation, one with respect to the other.

It will be seen that the reduced end portion I5 is provided with a pair of opposed angular faces f 44. A pair of elongated metallic straps 45 have their radially inner ends surrounding the reduced portions l2 and [5 immediately outwardly of the side plates 2 and 3. It will be noted, particularly by reference to Fig. 7, that one of the straps 45 has opposed angular faces 46 which are adapted to abut angular faces 44 on the reduced portion I5, whereby to prevent rotation of one strap 45 with respect to the hub-forming member I I. 'Adjacent their radially outer ends, the straps 45 are tightly pressed against the peripheral edge of the casing I and secured together such as by welding within a slot 41 in the casing I whereby to prevent rotation of 'the straps 45 with respect to the casing I. At their extreme outer ends, the straps 45 are formed to provide hooks 48 which may be bent to any desired position. It should here be noted that'the reduced end portion 25 of the torsion spring 24, extending as it does through the aligned openings 26 and 21 in the hub-forming members [0 and I I, prevents rotation of these two members with respect to each other. A spring clip 49 is receivable within a slot 56.

From the above, it should be obvious that, when it is desired to put my novel structure into use, either the hook 33 or hooks 48 are secured to a cooperating hook line or the like suspended from overhead. The cord is then released under the tension of spring 24 by pressing inwardly upon the head 36, whereby to disengage the detents 39 from the openings 4| in the spool-forming section 20 and thus permit rotation of the spool with respect to casing I. When it is desired to lock the cord 30 at any desired uncoiled extent, this is accomplished merely by releasing the pressure upon the head 36, whereby to allow the spring 4| to cause engagement of the detents 32 with the aligned openings 40 and 4|. Needless to say, rapid retraction of ,the cord 30 upon the spool 22 within the casing I may be accomplished by again pressing inwardly upon the head 36.

My invention has been thoroughly tested and found to be completely satisfactory for the accomplishment of the above objects; and, while I have shown a preferred embodiment of my novel structure, it will be seen that the same is capable of modification without departure from the spirit and scope of the invention as defined in the claim.

What I claim is:

In a device of the class described, a casing including abutting side plates defining a circular chamber provided with aligned central openings and a peripheral opening, a hub, said hub including cooperating components, one of which defines a cup-shaped central portion which projects axially outwardly through the central opening on one side of the casing and a radially-projected annular flange within said casing, the other of said components defining a reduced tubular central portion projecting axially outwardly through the central opening of the other side of said casing and a circumferentially-enlarged cup-shaped portion within said casing which cooperates with said flange to provide a cylindrical recess, a pair of axially spaced flanges rotatably mounted one on each side of the recess-forming portions of said hub, said flanges being provided with opposed circumferentially-extended abutments concentric with said hub which define a radially outwardly opening spool and a compartment radially inwardly of said abutments, a torsion spring within said compartment yieldingly biasing said spool in one direction of rotary movement, a pin slidably mounted in the tubular end of said hub for axial sliding-movements, an enlarged head on the inner end of said pin within said cylindrical recess, said hub and one of said flanges being provided with circumferentially-spaced axially extended openings which are alignable upon rotation of one thereof with respect to the other, a detent carried by said head and adapted to be received within said openings when said openings are in alignment, whereby to lock said flange against rotation with respect to said hub, a coil spring received within the cup-shaped reduced end of said hub and yieldingly biasing said head toward engagement with the detents carried thereby with the aligned openings in said hub and flange, and a flexible cord element coiled about said spool, said cord element having one end secured to said spool and its other end projecting outwardly through the peripheral opening in said casing.

JAMES E. PETRIE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 915,997 Narum et a1. Mar. 23, 1909 996,476 Fitton 'et a1. June 27, 1911 1,025,726 Waller, Jr. May 7, 1912 2,080,815 Gasstrom May 18, 1937 

